What is BS EN 4708‑103 - Aerospace fluoroelastomer sleeves about?
BS EN 4708‑103 specifies the required characteristics for two types a heat-shrinkable, fluoroelastomer sleeving for use in aircraft electrical systems at operating temperatures between-55 °C, and 200 °C. They are:
- Type A Thick wall
- Type B Thin wall
This sleeving has good flexibility, is flame retarded, and has a thick wall for mechanical protection. It is for use in areas subject to prolonged contamination by aircraft fuel, and fluids with the exception of phosphate ester-based hydraulic fluids. The standard colour is black.
These sleevings are normally supplied with internal diameters up to 50 mm for shrink ratios of 2:1. They are available in black only. Sizes other than those specifically listed in BS EN 4708‑103 may be available.
Who is BS EN 4708‑103 - Aerospace fluoroelastomer sleeves for?
BS EN 4708‑103 on fluoroelastomer sleeves for binding, insulation, and identification is useful for:
- Fluoroelastomer sleeves manufacturers
- Insulation testing engineers
- Safety regulatory organizations
- Military sector
Why should you use BS EN 4708‑103 - Aerospace fluoroelastomer sleeves?
Fluoroelastomers sleeves are a high value in use class of synthetic rubber which provide extraordinary levels of resistance to heat, and service life above 100°C. It is for use in areas subject to prolonged contamination by aircraft fuel, and fluids.
BS EN 4708‑103 provides information on the mass, and dimensions of the fluoroelastomer sleeves used for insulation in aircraft electrical systems at operating temperatures between -55 °C, and 200 °C. The tests for fluoroelastomers sleeves provided in BS EN 4708‑103 helps the manufacturers to ensure quality, and reliability, hence increasing the aircraft owners’ confidence, and ultimately reducing any risks associated.
Quality Assurance measurements, designation, labelling, and packaging of fluoroelastomers sleeves should conform to BS EN 4708‑103.